<template>
  <el-card>
    <div class="search-input-group">
      <el-form :model="searchForm" :inline="true">
        <el-form-item style="padding:5px" label="角色名称">
          <el-input 
            v-model="searchForm.roleName" 
            placeholder="请输入角色名称" 
            clearable
          />
        </el-form-item>
        <el-form-item>
          <el-button type="primary" :icon="Search" @click="handleSearch">查询</el-button>
          <el-button @click="handleResetSearch">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
    <div class="btn-group">
      <el-button 
        v-if="btnGroup.addb" 
        type="primary" 
        :icon="Plus"
        @click="showAddDialog"
      >
        添加
      </el-button>
      <el-button 
        v-if="btnGroup.editb" 
        type="success" 
        :icon="Edit"
        @click="showEditDialog"
        :disabled="multipleSelection.length !== 1"
      >
        修改
      </el-button>
      <el-button 
        v-if="btnGroup.deleteb" 
        type="danger" 
        :icon="Delete"
        @click="handleDelete"
        :disabled="multipleSelection.length <= 0"
      >
        删除
      </el-button>
    </div>
    <el-table 
    :data="dataList" 
    style="width: 100%" 
    row-key="recordId"
    @selection-change="handleSelectionChange"
    border
    >
        <el-table-column type="selection" width="40" />
        <el-table-column type="index" label="序号" width="80" show-overflow-tooltip/>
        <el-table-column prop="userId" label="用户编号" show-overflow-tooltip/>
        <el-table-column prop="roleName" label="角色名称" show-overflow-tooltip/>
        <el-table-column prop="createTime" label="创建时间" show-overflow-tooltip />
      </el-table>

      <!-- 分页组件 -->
      <el-pagination
        v-model:current-page="pagination.currentPage"
        v-model:page-size="pagination.pageSize"
        :total="pagination.total"
        :page-sizes="[10, 20, 50]"
        layout="total, sizes, prev, pager, next"
        background
        @current-change="handleCurrentChange"
        class="pagination"
      />
  </el-card>
  <!-- 添加/修改用户的对话框 -->
  <el-dialog
    :title="dialogTitle"
    v-model="dialogVisible"
    width="500px"
    @close="handleDialogClose"
  >
    <el-form
      :model="operateDataForm"
      :rules="operateDataFormRules"
      ref="operateDataFormRef"
      label-width="80px"
    >
      <el-form-item label="角色" prop="roleId">
        <el-select 
          v-model="operateDataForm.roleId" 
          placeholder="请选择角色"
          style="width: 100%"
        >
          <el-option
            v-for="item in roleOptions"
            :key="item.roleId"
            :label="item.roleName"
            :value="item.roleId"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="用户编号" prop="roleId">
        <el-input 
          v-model="operateDataForm.userId" 
          placeholder="请填写用户编号"
          style="width: 100%"
        >
        </el-input>
      </el-form-item>
    </el-form>
    
    <template #footer>
      <span class="dialog-footer">
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="submitUserForm">确定</el-button>
      </span>
    </template>
  </el-dialog>
</template>

<script setup>
import {
    Plus,
    Edit,
    Delete,
    Search
} from '@element-plus/icons-vue'
import {getList,getSearchList,add,edit,remove} from "@/api/management/roleUser"
import {getListWithoutPage} from "@/api/management/role"
import { onMounted,reactive,ref,computed } from "vue"
import { useUserStore } from '@/stores/user'

// 模糊查询用户信息
const searchForm=reactive({
  roleName: ''
})

// 对话框相关数据
const dialogVisible = ref(false)
const isEdit = ref(false)
const operateDataFormRef = ref(null)

// 添加或修改数据表单
const operateDataForm=reactive({
  recordId: '',
  roleId: '',
  userId: ''
})

// 表单验证规则
const operateDataFormRules = {
  roleId: [
    { required: true, message: '请选择角色', trigger: 'change' }
  ],
  userId: [
    { required: true, message: '请填写用户编号', trigger: 'blur' }
  ]
}

// 角色选项
const roleOptions = ref([
  { roleId: 1, roleName: '超级管理员' },
  { roleId: 2, roleName: '学校管理员' },
  { roleId: 9, roleName: '普通用户' }
])

// 对话框标题
const dialogTitle = computed(() => {
  return isEdit.value ? '修改用户角色' : '添加用户角色'
})

// 显示添加用户对话框
const showAddDialog = () => {
  isEdit.value = false
  dialogVisible.value = true
  // 重置表单
  Object.assign(operateDataForm, {
    roleId: '',
    userId: ''
  })
}

// 显示编辑用户对话框
const showEditDialog = () => {
  isEdit.value = true
  dialogVisible.value = true
  // 填充表单数据
  const selected = multipleSelection.value[0];
  Object.assign(operateDataForm, {
    recordId: selected.recordId,
    roleId: selected.roleId || '',
    userId: selected.userId || ''
  })
}

// 对话框关闭时的处理
const handleDialogClose = () => {
  operateDataFormRef.value?.resetFields()
}

// 固定参数源 ---start---
const userStore=useUserStore()
const dataList = ref([])
const multipleSelection=ref([])
const isSearch=ref(false)
const btnGroup=reactive({
    addb:false,
    editb:false,
    deleteb:false
})
const pagination = reactive({
  currentPage: 1,
  pageSize: 10,
  total: 0
})

const getDataList=()=>{
  let res = getList(pagination.currentPage)
  
  res.then(res=>{
    dataList.value=res.data.records
    let opeStr=res.operateStr
    if(opeStr.includes("*")||opeStr.includes("a")) btnGroup.addb=true
    if(opeStr.includes("*")||opeStr.includes("d")) btnGroup.deleteb=true
    if(opeStr.includes("*")||opeStr.includes("u")) btnGroup.editb=true
    pagination.total=res.data.total
    pagination.pageSize=res.data.size
    pagination.currentPage=res.data.current
  })
}

const handleSearch=()=>{ 
  isSearch.value=true
  let res=getSearchList({
    ...searchForm
  }, pagination.currentPage)
  res.then(res=>{ 
    dataList.value=res.data.records
    pagination.total=res.data.total
    pagination.pageSize=res.data.size
    pagination.currentPage=res.data.current
  })
}

const handleResetSearch=()=>{ 
  searchForm.roleName=""
  isSearch.value=false
  handleSearch()
}

// 添加或修改数据操作提交
const submitUserForm = () => {
  operateDataFormRef.value.validate(async (valid) => {
    if (valid) {
      if (isEdit.value) {
        // 编辑操作
        operateDataForm.recordId = multipleSelection.value[0].recordId;
        const {recordId, roleId,userId } = operateDataForm;
        await edit({ recordId, roleId,userId });
      } else {
        // 添加操作
        const { roleId,userId } = operateDataForm;
        await add({ roleId,userId });
      }
      dialogVisible.value = false
      refreshList()
    }
  })
}

// 删除数据操作提交
const handleDelete= async()=>{
  const ids = multipleSelection.value.map(item => item.recordId);
  await remove({ list: ids })
  refreshList()
}

const handleSelectionChange = (selection) => {
  multipleSelection.value = selection
}

// 当前页改变时触发
const handleCurrentChange = (val) => {
  pagination.currentPage = val
  refreshList()
}

const refreshList = () => {
  if(isSearch.value) handleSearch()
  else getDataList()
}
// --- end ---

onMounted(()=>{
    getDataList()
    let roles=getListWithoutPage()
    roles.then(res=>{
      roleOptions.value=res.data
    })
})
</script>

<style scoped>
.dialog-footer {
  display: flex;
  justify-content: flex-end;
}

.btn-group {
  margin-bottom: 15px;
}

.btn-group .el-button {
  margin-right: 1px;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

.search-input-group {
  margin-bottom: 15px;
  padding: 15px;
  background-color: #f5f7fa;
  border-radius: 4px;
}

.search-input-group .el-form-item {
  margin-bottom: 0;
  margin-right: 15px;
}
</style>